2. Samuel 21:15

Heroic Acts Performed in the Wars with the Philistines. - The brief accounts contained in these verses of different heroic feats were probably taken from a history of David's wars drawn up in the form of chronicles, and are introduced here as practical proofs of the gracious deliverance of David out of the hand of all his foes, for which he praises the Lord his God in the psalm of thanksgiving which follows, so that the enumeration of these feats is to be regarded as supplying a historical basis for the psalm. Sa2 21:15-16 The Philistines had war with Israel again. עוד (again) refers generally to earlier wars with the Philistines, and has probably been taken without alteration from the chronicles employed by our author, where the account which follows was attached to notices of other wars. This may be gathered from the books of the Chronicles, where three of the heroic feats mentioned here are attached to the general survey of David's wars (vid., Ch1 20:4). David was exhausted in this fight, and a Philistian giant thought to slay him; but Abishai came to his help and slew the giant. He was called Yishbo benob (Keri, Yishbi), i.e., not Yishbo at Nob, but Yishbobenob, a proper name, the meaning of which is probably "his dwelling is on the height," and which may have been given to him because of his inaccessible castle. He was one of the descendants of Raphah, i.e., one of the gigantic race of Rephaim. Raphah was the tribe-father of the Rephaim, an ancient tribe of gigantic stature, of whom only a few families were left even in Moses' time (vid., Deu 2:11; Deu 3:11, Deu 3:13, and the commentary on Gen 14:5). The weight of his lance, i.e., of the metal point to his lance, was three hundred shekels, or eight pounds, of brass, half as much as the spear of Goliath (Sa1 17:7);…

We have here the story of some conflicts with the Philistines, which happened, as it should seem, in the latter end of David's reign. Though he had so subdued them that they could not bring any great numbers into the field, yet as long as they had any giants among them to be their champions, they would never be quiet, but took all occasions to disturb the peace of Israel, to challenge them, or make incursions upon them. I. David himself was engaged with one of the giants. The Philistines began the war yet again, Sa2 21:15. The enemies of God's Israel are restless in their attempts against them. David, though old, desired not a writ of ease from the public service, but he went down in person to fight against the Philistines (Senescit, non segnescit - He grows old, but not indolent), a sign that he fought not for his own glory (at this age he was loaded with glory, and needed no more), but for the good of his kingdom. But in this engagement we find him, 1. In distress and danger. He thought he could bear the fatigues of war as well as he had done formerly; his will was good, and he hoped he could do as at other times. But he found himself deceived; age had cut his hair, and, after a little toil, he waxed faint. His body could not keep pace with his mind. The champion of the Philistines was soon aware of his advantage, perceived that David's strength failed him, and, being himself strong and well-armed, he thought to slay David; but God was not in his thoughts, and therefore in that very day they all perished. The enemies of God's people are often very strong, very subtle, and very sure of success, like Isbi-benob, but there is no strength, nor counsel, nor confidence against the Lord. 2. Wonderfully rescued by Abishai, who came seasonably in to his relief, Sa2 21:17. Here…

21:15-22 The extended account of battles with the Philistines highlights some notable accomplishments of David’s mighty warriors (see also 23:8-39). 21:15 The description of David as weak and exhausted helps shift the focus from his ability and accomplishments to God as the source of his success (ch 22).